26-21-00
 ALL  ú ú 02 Page 505 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 865-167
 (14) Calculate the resistance Rc of the squib discharge circuit using this formula:
 Rc = RL (V1/V2) - RL
 S 755-040
 (15) Make sure Rc is equal to or less than 3 ohms.
 NOTE:  If Rc is more than 3 ohms the circuit can not supply sufficient current to fire the squib cartridge.
 S 865-041
 (16)
 Connect the electrical connector D584 for right fire extinguisher bottle squib 1 to the adapter cable for the test box.

 S 865-042

 (17)
 Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)
EXTINGUISHER BOTTLES RIGHT

 (b)
EXTINGUISHER BOTTLE RIGHT

 S 865-043
 (18) Turn and hold the fire handle for engine 1 fully clockwise.
 (a)
Make sure the BOTTLE DISCHARGE light on the test box come on.

 (b)
Write the voltage on the multimeter (V1).

 S 985-168
 (19) Set the toggle switch on the test box to ON.
 (a) Write the voltage on the multimeter as (V2).
 S 865-044
 (20) Release the handle.
 (a)
Make sure the handle moves toward the center about 10 degrees.

 (b)
Make sure the multimeter shows 0 |2 volts.

 S 865-045
 (21)
 Set the toggle switch on the squib test box to OFF.

 S 865-046

 (22)
 Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)
EXTINGUISHER BOTTLES RIGHT

 (b)
EXTINGUISHER BOTTLE RIGHT

 (23)
 Disconnect electrical connector D584 from the test box.

 S 865-047
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-21-00
 ALL  ú ú 02 Page 506 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 975-048
 (24) Calculate the resistance Rc for the squib discharge circuit using this formula:
 Rc = RL (V1/V2) - RL
 (a)  Make sure Rc is equal to or less than 3 ohms.
 S 865-049
 (25)
 Push in the fire handle for engine 1 to the fully latch position.

 S 865-050

 (26)
 Remove the adapter cable from the squib test box.

 S 865-051

 (27)
 Do steps (1) thru (26) again to examine the secondary fire
 extinguishing circuits.

 G. Do a Test of the Bottle Discharge Circuit for Engine 2.
 S 865-052
 (1)  Attach the applicable adapter cable to the connector of the squib test box.
 NOTE: See the placard on the tester to determine the correct
____
 adapter.

 NOTE:____There are two squib circuits for each squib. Salect the squib 2A adapter for pins 3 and 4, and the squib 2B adapter for pins 6 and 7.
 S 865-053
 (2)  
Set the toggle switch on the squib test box to OFF.

 S 865-054

 (3)  
Connect connector D1322 for squib 2 for the left extinguisher bottle to the adapter cable for the test box.

 S 485-169

 (4)  
Connect the multimeter to the test box. Connect a 10 kohm resistor across the multimeter.

 S 865-164

 (5)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
EXTINGUISHER BOTTLES LEFT

 (b)  
EXTINGUISHER BOTTLE LEFT

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 26-21-00
 ALL  ú ú 02 Page 507 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 865-056
 (6)  Pull the fire handle for engine 2 on the Engine and APU Fire Control Panel, P8-1, to the emergency fire position.
 NOTE: To pull the fire handle into the fire position, it is
____ necessary to use the manual unlock push button behind the fire handle. When you turn the handle you must hold it against the stops while you get your values.
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：737-300 400 500 AMM 飛機維護手冊 防火 FIRE PROTECTION(91)